CVE-2026-45382

libde265 prior to v1.0.19 contains a heap-buffer-overflow read in decode_slice_unit_tiles caused by unvalidated PPS tile geometry (ctbAddrRS computed from PPS colBd/rowBd without ensuring it fits CtbAddrRStoTS.size() == sps->PicSizeInCtbsY). A malformed PPS that passes set_derived_values but e...